RECON: TNO occultation with 342842

Event between (342842) 08YB3 and star GA1260:08278233 with event index number of 1418360

Geocentric closest approach at 2024/07/12 08:11:04 UTC

J2000 position of star is 20:02:39.6 +37:22:16
Equinox of date position of star is 20:03:24.1 +37:25:43
Stellar brightness G=13.5, use SENSEUP=32
Star is 112 degrees from the moon. Moon is 35% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 15.4 AU from the Sun and 14.9 AU from the Earth.
The TNO is moving 29.6 km/sec on the sky relative to the star, or, 9.9 arcsec/hr.
The 1-sigma error in the time of the event is 26 seconds.
The 1-sigma cross-track error in the shadow position is 2164 km.
The sky-plane scale is 10798.7 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=83.2 km assuming a 5% albedo -- 2.0 sec chord
Diameter=34.0 km assuming a 30% albedo -- 0.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 342842, (2024/07/12 08:11UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:16.1 +45:22:08  1.3 10.73 116
37Gam Cyg      20:23:06.6 +40:20:11  2.2  4.78 115
25 Cyg         20:00:49.1 +37:06:40  5.0  0.64 112
PPM 084125     20:05:00.7 +37:15:09  8.1  0.34 112
PPM 084123     20:05:00.3 +37:32:13  9.1  0.30 112
342842         20:03:33.5 +37:26:28 13.5       112
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 5.0 sigma about the mid-time.
The median site spacing is 25.4 km RECON observability=1.0 and success probability=18.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 08:11:11 -17.8 AT Down 76.3 157.8 Up 08:08:32 - 08:13:50 3493
Kelowna 08:11:12 -18.2 Dark Down 76.6 156.7 Up 08:08:33 - 08:13:51 3455
Peachland 08:11:13 -18.4 Dark Down 76.7 155.5 Up 08:08:34 - 08:13:52 3449
Summerland 08:11:13 -18.5 Dark Down 76.8 155.6 Up 08:08:34 - 08:13:52 3432
Penticton 08:11:13 -18.6 Dark Down 76.9 155.8 Up 08:08:34 - 08:13:52 3423
Victoria 08:11:23 -19.6 Dark Down 76.5 141.7 Up 08:08:44 - 08:14:02 3395
Oliver 08:11:13 -18.9 Dark Down 77.2 155.2 Up 08:08:34 - 08:13:52 3386
Anarchist Mountain Observatory 08:11:13 -19.1 Dark Down 77.4 155.5 Up 08:08:34 - 08:13:52 3364
Tonasket 08:11:13 -19.4 Dark Down 77.7 154.7 Up 08:08:34 - 08:13:52 3333
Okanogan 08:11:14 -19.7 Dark Down 78.0 153.5 Up 08:08:35 - 08:13:53 3301
Brewster 08:11:15 -20.0 Dark Down 78.1 152.2 Up 08:08:36 - 08:13:54 3276
Manson/Chelan 08:11:16 -20.2 Dark Down 78.2 150.4 Up 08:08:37 - 08:13:55 3261
Entiat 08:11:16 -20.4 Dark Down 78.4 149.7 Up 08:08:37 - 08:13:55 3240
Wenatchee 08:11:17 -20.7 Dark Down 78.6 148.7 Up 08:08:38 - 08:13:56 3215
Ellensburg 08:11:18 -21.1 Dark Down 78.8 146.8 Up 08:08:39 - 08:13:57 3176
Yakima 08:11:18 -21.5 Dark Down 79.2 145.6 Up 08:08:39 - 08:13:57 3133
Toppenish/White Swan 08:11:18 -21.7 Dark Down 79.4 145.6 Up 08:08:39 - 08:13:57 3107
Pasco 08:11:15 -21.8 Dark Down 80.0 150.2 Up 08:08:36 - 08:13:54 3069
Goldendale 08:11:20 -22.3 Dark Down 79.7 142.2 Up 08:08:41 - 08:13:59 3058
The Dalles 08:11:21 -22.5 Dark Down 79.7 140.1 Up 08:08:42 - 08:14:00 3042
PNWRO 08:11:15 -22.1 Dark Down 80.3 150.4 Up 08:08:36 - 08:13:54 3038
Maupin 08:11:21 -22.9 Dark Down 80.1 139.0 Up 08:08:42 - 08:14:00 2995
Sisters 08:11:23 -23.8 Dark Down 80.5 133.6 Up 08:08:44 - 08:14:02 2913
Redmond 08:11:22 -23.8 Dark Down 80.7 135.0 Up 08:08:43 - 08:14:01 2902
Bend 08:11:23 -24.1 Dark Down 80.8 133.5 Up 08:08:44 - 08:14:02 2882
Oregon Observatory 08:11:24 -24.2 Dark Down 80.8 132.3 Up 08:08:45 - 08:14:03 2867
La Pine/Gilchrist 08:11:24 -24.4 Dark Down 80.9 131.1 Up 08:08:45 - 08:14:03 2846
North Lake 08:11:22 -24.9 Dark Down 81.5 131.2 Up 08:08:43 - 08:14:01 2787
Paisley 08:11:22 -25.4 Dark Down 82.1 129.8 Up 08:08:43 - 08:14:01 2720
Klamath Falls 08:11:26 -25.9 Dark Down 81.6 122.6 Up 08:08:47 - 08:14:05 2698
Lakeview 08:11:22 -25.9 Dark Down 82.5 127.6 Up 08:08:43 - 08:14:01 2662
Cedarville 08:11:23 -26.6 Dark Down 83.0 124.1 Up 08:08:44 - 08:14:02 2588
Fall River/Burney 08:11:26 -27.1 Dark Down 82.5 116.5 Up 08:08:47 - 08:14:05 2564
Susanville 08:11:25 -27.7 Dark Down 83.2 114.3 Up 08:08:46 - 08:14:04 2480
Greenville 08:11:26 -28.0 Dark Down 83.2 111.3 Up 08:08:47 - 08:14:05 2458
Gimple 08:11:26 -28.0 Dark Down 83.2 111.5 Up 08:08:47 - 08:14:05 2455
Quincy 08:11:26 -28.2 Dark Down 83.2 109.7 Up 08:08:47 - 08:14:05 2436
Portola 08:11:25 -28.3 Dark Down 83.6 110.0 Up 08:08:46 - 08:14:04 2411
Reno 08:11:24 -28.6 Dark Down 84.2 109.7 Up 08:08:45 - 08:14:03 2368
Carson City 08:11:24 -28.9 Dark Down 84.3 106.4 Up 08:08:45 - 08:14:03 2329
Gardnerville 08:11:24 -29.2 Dark Down 84.4 104.1 Up 08:08:45 - 08:14:03 2302
Yerington 08:11:22 -29.1 Dark Down 84.8 106.3 Up 08:08:43 - 08:14:01 2295
Hawthorne 08:11:21 -29.5 Dark Down 85.3 102.5 Up 08:08:42 - 08:14:00 2233
Niwot 08:10:42 -26.2 Dark Down 83.5 247.5 Up 08:08:03 - 08:13:21 2197
SwRI 08:10:42 -26.3 Dark Down 83.6 248.1 Up 08:08:03 - 08:13:21 2187
Lee Vining 08:11:23 -30.1 Dark Down 85.0 94.9 Up 08:08:44 - 08:14:02 2183
Tonopah 08:11:17 -29.9 Dark Down 86.5 100.0 Up 08:08:38 - 08:13:56 2153
Bishop 08:11:21 -30.7 Dark Down 85.6 88.2 Up 08:08:42 - 08:14:00 2103
Beatty 08:11:17 -31.1 Dark Down 86.9 80.2 Up 08:08:38 - 08:13:56 2019
Indian Springs 08:11:15 -31.3 Dark Down 87.6 69.6 Up 08:08:36 - 08:13:54 1962
CPSLO 08:11:30 -32.8 Dark Down 83.4 69.4 Up 08:08:51 - 08:14:09 1934
Henderson 08:11:13 -31.8 Dark Down 87.8 51.4 Up 08:08:34 - 08:13:52 1890
Searchlight/Boulder City 08:11:13 -32.3 Dark Down 87.5 40.4 Up 08:08:34 - 08:13:52 1827
Patrick 08:11:10 -32.3 Dark Down 87.9 22.4 Up 08:08:31 - 08:13:49 1802
Laughlin/Bullhead City 08:11:12 -32.6 Dark Down 87.4 31.7 Up 08:08:33 - 08:13:51 1788
Kingman/Dolan Springs 08:11:11 -32.5 Dark Down 87.6 23.6 Up 08:08:32 - 08:13:50 1781
Mohave Valley 08:11:12 -32.9 Dark Down 87.2 28.7 Up 08:08:33 - 08:13:51 1758
Wildwood 08:11:25 -34.0 Dark Down 84.3 53.0 Up 08:08:46 - 08:14:04 1756
DCO 08:11:08 -32.5 Dark Down 87.7 6.3 Up 08:08:29 - 08:13:47 1756
Lake Havasu City 08:11:12 -33.2 Dark Down 86.9 22.0 Up 08:08:33 - 08:13:51 1710
Idyllwild 08:11:20 -34.2 Dark Down 85.2 39.5 Up 08:08:41 - 08:13:59 1676
Parker 08:11:12 -33.6 Dark Down 86.6 19.4 Up 08:08:33 - 08:13:51 1672
Blythe 08:11:13 -34.1 Dark Down 86.0 20.1 Up 08:08:34 - 08:13:52 1620
Calipatria 08:11:17 -34.7 Dark Down 85.2 26.3 Up 08:08:38 - 08:13:56 1586
George/Scottsdale 08:11:05 -33.7 Dark Down 86.3 348.0 Up 08:08:26 - 08:13:44 1582
Yuma 08:11:14 -35.0 Dark Down 85.1 16.7 Up 08:08:35 - 08:13:53 1521

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 342842, (2024/07/12 08:11UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 10.73 116
37Gam Cyg      20:22:13.7 +40:15:24  2.2  4.78 115
25 Cyg         19:59:55.1 +37:02:34  5.0  0.64 112
PPM 084125     20:04:06.6 +37:10:55  8.1  0.34 112
PPM 084123     20:04:06.3 +37:27:59  9.1  0.30 112
342842         20:02:39.6 +37:22:16 13.5       112
Positions are for J2000

Event circumstances last updated at 2020/03/24 22:35:09 UT

Marc W. Buie, Southwest Research Institute

RECON